Well, the band themselves stated his lung infection is in a serious state and that's quite alarming. He's being assisted by doctors anyway, though, and the infection has probably been happening for a while now, as he was acting quite different during the whole South American leg of the Music of the Spheres World Tour.

Oh, well it should be fine though, since he’s being medicated with doctors, healthy people respond well to pneumonia medication.

I think the main thing we have to worry about is his voice being permanently damaged if he sings through his infection.

Yeah, hopefully he'll get fully recovered 'til October 25th.